Input devices

Input devices

1. Scanner - Scanner is a device that optically scans images, printed text, handwriting, or an object, it to a digital image.

2. Webcam - This device access images through a computer, supports video-chats online, sends full motion video e-mails and automatically creates and transmits videos onto the PC.

   • Trackball - This device is half inserted ball and by moving fingers on the ball, the pointer can be moved, it also gives you much more storage than a mouse.

3. Digital camera - In this device images are recorded and stored in digital form. This device also allows you to transfer a word document, e-mail or posted on a website.

4. Touch screen - This device is a video display screen that can be used as to receive input from the touch of a finger. Touch screens are popularly used at ATM's.

   • Mouse - This device has many different features. It has a wheel to scroll up and down the page or menu, a cable which connects to USB port on computer and to cursors to click on things.

5. Keyboard - This device contains keys that allow users to enter data and instructions into the computer.

6. Microphone - This device is used for various applications like adding sound to a multimedia presentation or for mixing music.